Patents by Inventor Yoichi Yokobori

Yoichi Yokobori has filed for patents to protect the following inventions. This listing includes patent applications that are pending as well as patents that have already been granted by the United States Patent and Trademark Office (USPTO).

  • Ultrasonic transducer with a retracted portion on a side surface of the piezoelectric layer
    Patent number: 7969068
    Abstract: An ultrasonic transducer has a rectangular piezo-electric ceramic sheet piece 2 which has a retracted portion 1 on a side face, an upper electrode layer 3 placed on an upper surface of the ceramic sheet piece, 4 a first terminal electrode that is placed on the upper surface of the ceramic sheet piece and connected to the upper electrode layer 3, a lower electrode layer 5 placed on the lower surface of the ceramic sheet piece, an electro-conductive layer 6 that is placed on the retracted side face 1 and connected to the lower electrode layer 5, a second terminal electrode 7 that is placed on the upper surface of the ceramic sheet piece and is connected to the electro-conductive layer 6, a first lead wire 9a connected to the first terminal electrode, a second lead wire 9b connected to the second terminal electrode 7, an acoustic matching layer 10 placed on the upper electrode layer, and an acoustic absorbing layer 11 placed on the surface of the lower electrode layer.
    Type: Grant
    Filed: December 19, 2008
    Date of Patent: June 28, 2011
    Assignees: Ueda Japan Radio Co., Ltd., Terumo Kabushiki Kaisha
    Inventors: Yoichi Yokobori, Hiroyuki Yagami
  • ULTRASONIC TRANSDUCER
    Publication number: 20090160293
    Abstract: An ultrasonic transducer has a rectangular piezo-electric ceramic sheet piece 2 which has a retracted portion 1 on a side face, an upper electrode layer 3 placed on an upper surface of the ceramic sheet piece, 4 a first terminal electrode that is placed on the upper surface of the ceramic sheet piece and connected to the upper electrode layer 3, a lower electrode layer 5 placed on the lower surface of the ceramic sheet piece, an electro-conductive layer 6 that is placed on the retracted side face 1 and connected to the lower electrode layer 5, a second terminal electrode 7 that is placed on the upper surface of the ceramic sheet piece and is connected to the electro-conductive layer 6, a first lead wire 9a connected to the first terminal electrode, a second lead wire 9b connected to the second terminal electrode 7, an acoustic matching layer 10 placed on the upper electrode layer, and an acoustic absorbing layer 11 placed on the surface of the lower electrode layer.
    Type: Application
    Filed: December 19, 2008
    Publication date: June 25, 2009
    Applicants: UEDA JAPAN RADIO CO., LTD., TERUMO KABUSHIKI KAISHA
    Inventors: Yoichi YOKOBORI, Hiroyuki YAGAMI